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https://bugzilla.mozilla.org/show_bug.cgi?id=657791
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  <title>Test for Bug 657791</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=657791">Mozilla Bug 657791</a>

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<pre id="test">
<script type="application/javascript">

// Subset of seek tests for cueless WebMs. When random seeking (rather than just
// in buffered ranges) is implemented for WebM, these tests can be removed and
// the cueless WebM(s) references can be moved to the general test_seek test
// array.
// Test array is defined in manifest.js

var manager = new MediaTestManager;

// Exercise functionality as in test_seek-1
function testWebM1(e) {
  var v = e.target;
  v.removeEventListener('loadeddata', testWebM1);

  var startPassed = false;
  var endPassed = false;
  var seekFlagStart = false;
  var seekFlagEnd = false;
  var readonly = true;
  var completed = false;

  ok(v.buffered.length >= 1, "Should have a buffered range");
  var halfBuffered = v.buffered.end(0) / 2;

  function startTest() {
    is(v.seekable.start(0), v.buffered.start(0), "Seekable start should be buffered start");
    is(v.seekable.end(0), v.buffered.end(0), "Seekable end should be buffered end");
    ok(!completed, "Should not be completed yet");
    ok(!v.seeking, "seeking should default to false");
    try {
      v.seeking = true;
      readonly = v.seeking === false;
    }
    catch(e) {
      readonly = "threw exception: " + e;
    }
    is(readonly, true, "seeking should be readonly");

    v.currentTime = halfBuffered;
    seekFlagStart = v.seeking;
  }

  function seekStarted() {
    ok(!completed, "should not be completed yet");
    startPassed = true;
  }

  function seekEnded() {
    ok(!completed, "should not be completed yet");
    ok(Math.abs(v.currentTime - halfBuffered) < 0.1,
       "Video currentTime should be around " + halfBuffered + ": " + v.currentTime + " (seeked)");
    endPassed = true;
    seekFlagEnd = v.seeking;
    v.play();
  }

  function playbackEnded() {
    ok(!completed, "should not be completed yet");

    completed = true;
    ok(startPassed, "seeking event");
    ok(endPassed, "seeked event");
    ok(seekFlagStart, "seeking flag on start should be true");
    ok(!seekFlagEnd, "seeking flag on end should be false");
    removeNodeAndSource(v);
    manager.finished(v._token);
  }

  once(v, "ended", playbackEnded);
  once(v, "seeking", seekStarted);
  once(v, "seeked", seekEnded);

  startTest();
}

// Fetch the media resource using XHR so we can be sure the entire
// resource is loaded before we test buffered ranges. This ensures
// we have deterministic behaviour.
function fetch(url, fetched_callback) {
  var xhr = new XMLHttpRequest();
  xhr.open("GET", url, true);
  xhr.responseType = "blob";

  var loaded = function (event) {
    if (xhr.status == 200 || xhr.status == 206) {
      // Request fulfilled. Note sometimes we get 206... Presumably because either
      // httpd.js or Necko cached the result.
      fetched_callback(window.URL.createObjectURL(xhr.response));
    } else {
      ok(false, "Fetch failed headers=" + xhr.getAllResponseHeaders());
    }
  };

  xhr.addEventListener("load", loaded, false);
  xhr.send();
}

function startTest(test, token) {
  var onfetched = function(uri) {
    var v = document.createElement('video');
    v._token = token;
    v.src = uri;
    v.addEventListener("loadeddata", testWebM1, false);
    document.body.appendChild(v);
  }
  manager.started(token);
  fetch(test.name, onfetched);
}

SimpleTest.waitForExplicitFinish();
manager.runTests(gCuelessWebMTests, startTest);

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